Rails中url_for的反义词是什么？是否具有路径并生成解释路径的函数？ [英] What is the opposite of url_for in Rails? A function that takes a path and generates the interpreted route?

问题描述

脑袋有点炸....我如何从相对路径中获取：controller和：action的哈希值？

Brain's a little fried....How do I get a hash of the :controller and :action from a relative_path?

这基本上与url_for相反。在下面的示例中， some_function是我正在寻找的神秘函数名称...我知道这很简单，只是不记得了或者似乎能够在文档中找到它。

This is basically the opposite of url_for. in the example below, "some_function" is the mystery function name I'm looking for...I know it's easy, just can't remember or seem to be able to find it in the docs.

就像这样：

some_function('/posts/1/edit')
=> {:controller => 'posts', :action => 'edit', :id => '1'}

推荐答案

Rspec具有方法'params_for' ，它使用Action Controller的路由方法将带有方法的路径解析为路由。

Rspec has a method 'params_for', which uses Action Controller's Routing Methods to parse paths with methods into routes.

它们的功能比此功能要强一些，但可以归结为：

Theirs is a little more robust than this, but it boils down to:

def params_for(path, method)
  params = ActionController::Routing::Routes.recognize_path(path, :method => method)
end

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